作者: huahua22 時間: 2011-4-27 09:47 本帖最后由 huahua22 于 2011-4-26 23:56 編輯 7 G: l* i8 W# b9 [4 S: f : D3 _' w9 F8 ?& J2 _額,，自己翻譯了一些,，不知道怎么樣，望大家批評指正............8 r9 Z9 X. A7 M0 x4 N
實(shí)驗(yàn)教學(xué)是高等學(xué)校理工科教學(xué)中的重要組成部分,，因?yàn)閷?shí)驗(yàn)教學(xué)不僅僅是學(xué)生獲得知識的重要途徑,，而且對培養(yǎng)學(xué)生的綜合素質(zhì)、實(shí)際工作能力,、科學(xué)研究能力和創(chuàng)新能力都具有十分重要的作用,。而液壓與氣壓傳動是機(jī)械類專業(yè)必修的專業(yè)基礎(chǔ)課，是一門實(shí)踐性很強(qiáng)的課程,，所以現(xiàn)代液壓教學(xué)不只是單純教授學(xué)生理論知識,，更應(yīng)加強(qiáng)學(xué)生實(shí)際動手能力的鍛煉。2 p9 \8 O* q; g; G& i
Experiment teaching is an important part of Higher school Science teaching . The experiment teaching can not only help students to obtain knowledge, but also play an important role in cultivating students' comprehensive quality, actual work ability, scientific research ability and the innovation ability. And then the hydraulic and pneumatic transmission program is Compulsory specialized fundamental course of Machinery specialized. So modern hydraulic program should not only teaching student theory knowledge, but also to reinforce the students’ practical ability of exercise. ' y& Q) o; C4 R( T j & u' K' x( ?1 l" b' Z作者: huahua22 時間: 2011-4-27 10:21
額,，繼續(xù)....& V5 h6 J; M7 d
現(xiàn)有液壓實(shí)驗(yàn)臺控制系統(tǒng)由PLC,、計算機(jī)控制（計算機(jī)內(nèi)部裝有數(shù)據(jù)采集卡，用來完成對比例閥和伺服閥的測試）,、手動,、自動控制等方式組成。液壓實(shí)驗(yàn)臺的自動化程度比較高,。但隨著液壓技術(shù)和計算機(jī)技術(shù)的高速發(fā)展,，現(xiàn)有的液壓實(shí)驗(yàn)臺也有一定的局限性，主要表現(xiàn)在下面兩個方面：) G+ U3 I1 `9 ?$ n) m- Z
The Control system of the existing hydraulic test bench are composed by PLC control system,、Computer control system（With the data acquisition card inside a computer which are used to testing the performance of Proportional valves and servo valves）,、manual and automatic control system etc. High level of automation at the hydraulic experiment platform. But as the fast development of hydraulic technology，the existing hydrau7 k$ Q( }, q1 E# N$ r# T! G% F! W
lic test bench also has certain limitation, mainly displays in the following two aspects:! h8 x) v3 K' d3 C% x* ` 作者: huahua22 時間: 2011-4-27 10:55
額,，繼續(xù).....希望高手幫忙指導(dǎo)下�,。≡谙虏粍俑屑�....6 p# [' y' v9 C
（1）液壓實(shí)驗(yàn)臺測試壓力較低,、輸出流量比較小,。從成本和學(xué)生使用安全角度考慮，目前實(shí)驗(yàn)室內(nèi)的兩臺試驗(yàn)臺,，一臺壓力為15MPa左右,，另一臺最高壓力為22MPa左右,。變量泵液壓系統(tǒng)的最大輸出流量為32L/min,，定量泵液壓系統(tǒng)的額定流量為12L/min。8 \ M& c5 r; I' v
2）現(xiàn)有液壓實(shí)驗(yàn)臺可以做通用液壓元件的實(shí)驗(yàn),，卻不能滿足特殊液壓元件（如插裝閥和多路換向閥）的測試,。2 z K+ b. }. u- M
（1）Hydraulic testing bench has the characteristic of lower test pressure and small out flow. Out of consideration for the cost and students use safety ，the two test bench in laboratory at present both have the characteristic of lower test pressure and small out flow. Quantitative pump hydraulic system has the pressure of below 15MPa and flow below 12L/min,，the other one is variable pump system which has the pressure of below 22MPa and flow below 32L/min.% Q+ q7 F2 v7 G# q# _
（2）The existing hydraulic test bench can test experiments of general hydraulic components while as can't test special hydraulic components（such as cartridge valves and multi-way directional valve）. 6 b' ^7 z% I; v( @' f" r) @/ }作者: huahua22 時間: 2011-4-28 09:55
額...繼續(xù)... 1 U) \5 ?1 i1 x# q" N 綜合上面兩個原因,，如果想使液壓實(shí)驗(yàn)技術(shù)和液壓技術(shù)的發(fā)展同步,，可以采取優(yōu)化現(xiàn)有液壓實(shí)驗(yàn)臺的方法來實(shí)現(xiàn)。本文中,，在參考YCS-DII電液伺服比例實(shí)驗(yàn)臺的基礎(chǔ)上,，完成實(shí)驗(yàn)臺優(yōu)化中增設(shè)液壓回路的設(shè)計，完成優(yōu)化液壓實(shí)驗(yàn)臺電氣系統(tǒng)并繪制出相應(yīng)的控制圖,。通過仿真軟件AMESim的應(yīng)用,，為增設(shè)液壓回路建立仿真模型并設(shè)置參數(shù)，從而得到比較合理的液壓系統(tǒng)和比較理想的元件參數(shù),。1 e3 X3 f; G4 c/ s
Comprehensive considered two reasons above,，if we want to creating a synchronous development of experiment and technology in hydraulic ，we should optimize the existing hydraulic test bench. In this paper,，have finished the design of hydraulic loop which are added in experimental platform optimization design in reference to the YCS – DII electro-hydraulic Servo proportion experimental platform. Completed the Electrical system design and Mappped out the Control system graph of Hydraulic test bench. Established Simulation model for Adding hydraulic loop and then Set parameters for them in AMESim software .$ B& C# M, O: ] 作者: 瀟劍瑜 時間: 2011-8-29 10:23
Experiment teaching is an important part of Higher school Science teaching . The experiment teaching can not only help students to obtain knowledge, but also plays an important role in cultivating students' comprehensive quality, actual work ability, scientific research ability and innovation ability. Besides, the hydraulic and pneumatic transmission program is an Compulsory specialized fundamental course of Machinery specialized. So modern hydraulic program should not only tell student theory knowledge, but also reinforce the students’ practical ability of exercise.個人觀點(diǎn),，請參考。